Upgrade your 2015-2020 Ford F-150 with the Flowmaster Outlaw Cat-Back Exhaust System, part number 817726. Designed for trucks equipped with the 2.7L EcoBoost, 3.3L, 3.5L EcoBoost, 3.5L Ti-VCT, or 5.0L engine, this system delivers an aggressive exterior exhaust tone while maintaining a more moderate sound level inside the cab. It provides the performance-focused sound and construction expected from Flowmaster in a direct-fit, bolt-on package.
Constructed from durable 409S stainless steel, the system uses a 3-inch mandrel-bent inlet tube leading into an aggressive Super 10 Series performance muffler. Dual 2.5-inch mandrel-bent tailpipes help support efficient exhaust flow, while large 4-inch black ceramic-coated stainless steel tips provide a distinctive finished appearance. The included rear and side exit tailpipes let you select the configuration that best matches your truck and towing needs, including side exits behind the rear tires for RV, boat, or trailer use.
The Flowmaster 817726 exhaust system fits 2WD and 4WD F-150 models with compatible wheelbases, but it does not fit Standard Cab/Short Bed models or the Ford F-150 Raptor. All required components and installation hardware are included for a straightforward home installation. This system is backed by Flowmaster's lifetime limited warranty. California emissions compliance should be verified before installation, as this product may require acknowledgment for use in certain applications.
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